_recipients->RecipientsChanged.connect (boost::bind(&DKDMDialog::setup_sensitivity, this));
_timing->TimingChanged.connect (boost::bind(&DKDMDialog::setup_sensitivity, this));
_make->Bind (wxEVT_BUTTON, boost::bind(&DKDMDialog::make_clicked, this));
_recipients->RecipientsChanged.connect (boost::bind(&DKDMDialog::setup_sensitivity, this));
_timing->TimingChanged.connect (boost::bind(&DKDMDialog::setup_sensitivity, this));
_make->Bind (wxEVT_BUTTON, boost::bind(&DKDMDialog::make_clicked, this));